Joseph oscae jackmah



(No Model.)

J. o( JACKMAN.

CORD HOLDER POR GRA-IN BINDERS'.

No. 331,404. Patented Deo. 1.1885.

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Nrrnn ferns JOSEPH OSCAR JACKMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM DEERING, OF SAME PLACE.

cono-HOLDER FoR eenlwelnoees.

SPECIFICATION forming part of Letters Eatent No. 331,40d, dated December l, 1885.

Application filed July 18, 1883. Serial No. 101,253.

To all whom t 11i/ay concern:

Be it known that I, JosErH Osons JACK- MAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Cord-Holders for Grain- Binders, of which the following is a full description, reference being had to the accompanying drawings.

My invention relates to the means for intermittingly moving the cord-holding disk. I have adapted the device to a form .of binder the operation of which is so well understood that I have shown only, and willlimit my description t0, the parts forming the subject of my invention, Which consists in adapting a scroll or cam wheel to perform the office of transmitting motion from the knotter-driving shaft, which is adapted to be continuously rotated, to the cord-holding disk, and giving the latter an intermittent rotating motion on its axis to present a different one of the series of peripheral notches for the reception of the twine.

Figure 1 is a plan view of my device; Fig. 2, a side elevation as seen from a point to the left of Fig. I, Fig. 3, a perspective view of the scroll-cam and disk as seen from a point below and to the left of Fig. 2. Figs. 4, 5, and 6 are details of a proposed modification.

A is the knotter-frame, having` the sleeve A as a bearing for the knotter-driving shaft C.

A2 is the opening for the needle, into which the latter descends to lay the twine into the holder.

A3 and A4 are bearings for the knettershaft.

A5 is an eye in which the stem of the knifearm (not shown) vibrates.

A6 is a part of the frame for supporting the notched holding-disk a.

A7 is the knetter-driving wheel.

The cord-clamping plate B is shown in dotted lines in Fig. l.

b is the knotter, with tongue or jaw b, having the usual anti-friction roller for opening the same.

b2 is the knotter-pinion. v

So far the parts are well known, and their operationis understood by those versed in the art.

(No model.)

C', Figs. l and 2, is a gear- .vheel keyed to the shaft C, which gear-wheel meshes into the gear-wheel C2, of equal diameter, which revolves on the stud C, projecting from the part 5 5 AB of the knotter-fraine A. Projecting from the side of the gear-wheel Cz toward the knotter isascroll-cam, C, quite thin but deep. The axis of rotation of this scroll-cam is so situated in relation to the holding-disk a that the 6o plane of the latter cuts the former so near that the scroll-cam will draw through the notches in the disk squarely. The said disk a has six notches for holding the twine nicely smoothed, and between them, alternately arranged, six other notches, e. These 'are in effect but the spaces between the teeth of a gear. The scroll-cam is from its beginning at d to d concentric, but from d to dAL the radius diminishes rapidly, and from that point to the termination at d3 it remains concentric. The radial distance between the two concentric parts ofthe threads of the scroll-cam-is equal to the pitch of the six supplemental notches e of the disk a, as shown in Figs. 2 and 3.

Upon the rotation of the shaft C the gearwheels C and C7 are given rotation in the directions indicated by the arrows, and the thread of the scroll-cam drawing through the notches e at the time that part of the thread between the parts d and d2 engages the notch e the disk will be moved the distance from one notch to the next. The needle lays the twine to the knetter and holder in the usual manner, and when once laid that part of the thread of thescroltcam'which moves the disk becomes engaged therewith, and the disk is thus turned, and it carries the twine to the holding position and onward to the point where the ends are grasped by the jaws of the knetter, that has in the meantime rotated and laid the knot.

It is apparent that when at rest the disk is absolutely held from any movement, and thus it is seen that the threads of the scroll-cam serve two purposes-that of moving the disk and that of retaining it in the position to which it is advanced.

The principle involved may be used in modified forms, one of which I have shown, which is really but a reversal of the position of the parts.

In Figs. 4, 5, and 6 I show the scroll-cam C3 on the shaft; G and the holding-disk a in its proper position in relation to the shaft, and having a miner-gear, G, and connecting the 5 said scroll-cam C3 andmiber-gear G, a shaft', g, i

having the mtengear G', and notched disk f.

What I claim isl. The combination, with the cord-hoiding 2. The shaft C, gear-Wheels C and GZ, and the holding-disk a, combined with the scrollcam Wheel O3, substantially as described.

3. The cord-holder disk a, provided with the twine-holding notches, and the notches e,

combined with the scroll-cam wheel C3, substantially as described.

disk, of lche continuously-revolving scroll or JOSEPH OSCAR JAGKMAN 1o cam Wheel, adapted to revolve l[he holding- Nitnessesz disk nbermittingiy, substantially :isl and for FRANK MOULTRUP,

the purpose described. S. I. HULETT. 

